Definition of AID (artificial insemination by donor)

AID (artificial insemination by donor): A procedure in which a fine
catheter (tube) is inserted through the cervix (the natural opening of the
uterus) into the uterus (the womb) to deposit a sperm sample from a donor
other than the woman's mate directly into the uterus. The purpose of this
procedure is to achieve fertilization and pregnancy. AID is also called
heterologous insemination. AID is distinguished from homologous
insemination, that is artificial insemination by husband (AIH).